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POffmpeg & png watermark issue
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copied!<p>I tried to create a watermark (using a <code>png</code> image) on a video like this:</p> <pre><code>ffmpeg -i test.wmv -b:a 300k -ar 22050 -t 10 -f flv -s 352x288 -vf "movie = watermark_logo352.png [watermark]; [in][watermark] overlay =0:0 [out]" out.flv </code></pre> <p>but I get the error:</p> <pre><code>ffmpeg version 0.10.4 Copyright (c) 2000-2012 the FFmpeg developers built on Jun 14 2012 13:14:31 with gcc 4.4.5 configuration: --prefix=/home/username --enable-cross-compile --enable-shared --arch=amd64 --target-os=linux --disable-yasm --enable-decoder=png --enable-encoder=png libavutil 51. 35.100 / 51. 35.100 libavcodec 53. 61.100 / 53. 61.100 libavformat 53. 32.100 / 53. 32.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 61.100 / 2. 61.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 6.100 / 0. 6.100 Input #0, asf, from 'test.wmv': Metadata: > WMFSDKVersion : 9.00.00.2980 > WMFSDKNeeded : 0.0.0.0000 > IsVBR : 1 > VBR Peak : 351 > Buffer Average : 728 Duration: 00:00:05.59, start: 0.000000, bitrate: 574 kb/s > Stream #0:0(jpn): Audio: wmav2 (a[1][0][0] / 0x0161), 22050 Hz, 2 channels, s16, 32 kb/s > Stream #0:1(jpn): Video: wmv1 (WMV1 / 0x31564D57), yuv420p, 352x288, 520 kb/s, SAR 8:9 DAR 88:81, 29.97 tbr, 1k tbn, 1k tbc File > 'out2.flv' already exists. Overwrite ? [y/N] y w:352 h:288 > pixfmt:yuv420p tb:1/1000000 sar:8/9 sws_param: [image2 @ 0x551f880] decoding for stream 0 failed [image2 @ 0x551f880] Could not find codec parameters (Video: png) [movie @ 0x551f440] Failed to find stream info [movie @ 0x551f440] Failed to find any codec Error initializing filter 'movie' with args 'watermark_logo352.png' Error opening filters! </code></pre> <p>When I use a <code>jpg</code>, it works like a charm.</p> <p>I'm use ffmpeg v 0.10.4 on Debian 6 Squeeze. Any help would be much appreciated.</p> <p><strong>EDIT</strong></p> <p>The problem is simpler than i thought. If i use ffmpeg -i with any png image i get a similar error:</p> <pre><code> libavutil 51. 35.100 / 51. 35.100 libavcodec 53. 61.100 / 53. 61.100 libavformat 53. 32.100 / 53. 32.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 61.100 / 2. 61.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 6.100 / 0. 6.100 libpostproc 52. 0.100 / 52. 0.100 [image2 @ 0xc8b73a0] decoding for stream 0 failed [image2 @ 0xc8b73a0] Could not find codec parameters (Video: png) watermark.png: could not find codec parameters </code></pre>

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